<template>
  <el-form size="small">
    <el-form-item>
      <el-radio v-model='radioValue' :label="1">
        日，允许的通配符[, - * ? / L W]
      </el-radio>
    </el-form-item>

    <el-form-item>
      <el-radio v-model='radioValue' :label="2">
        不指定
      </el-radio>
    </el-form-item>

    <el-form-item>
      <el-radio v-model='radioValue' :label="3">
        周期从
        <el-input-number v-model='cycle01' :min="1" :max="30" /> -
        <el-input-number v-model='cycle02' :min="cycle01 ? cycle01 + 1 : 2" :max="31" /> 日
      </el-radio>
    </el-form-item>

    <el-form-item>
      <el-radio v-model='radioValue' :label="4">
        从
        <el-input-number v-model='average01' :min="1" :max="30" /> 号开始，每
        <el-input-number v-model='average02' :min="1" :max="31 - average01 || 1" /> 日执行一次
      </el-radio>
    </el-form-item>

    <el-form-item>
      <el-radio v-model='radioValue' :label="5">
        每月
        <el-input-number v-model='workday' :min="1" :max="31" /> 号最近的那个工作日
      </el-radio>
    </el-form-item>

    <el-form-item>
      <el-radio v-model='radioValue' :label="6">
        本月最后一天
      </el-radio>
    </el-form-item>

    <el-form-item>
      <el-radio v-model='radioValue' :label="7">
        指定
        <el-select clearable v-model="checkboxList" placeholder="可多选" multiple style="width:100%">
          <el-option v-for="item in 31" :key="item" :value="item">{{item}}</el-option>
        </el-select>
      </el-radio>
    </el-form-item>
  </el-form>
</template>

<script>
export default {
  data() {
    return {
      radioValue: 1,
      workday: 1,
      cycle01: 1,
      cycle02: 2,
      average01: 1,
      average02: 1,
      checkboxList: [],
      checkNum: this.$options.propsData.check
    }
  },
  name: 'crontab-day',
  props: ['check', 'cron'],
  methods: {
    // 单选按钮值变化时
    radioChange() {
      ('day rachange');
      if (this.radioValue !== 2 && this.cron.week !== '?') {
        this.$emit('update', 'week', '?', 'day')
      }

      switch (this.radioValue) {
        case 1:
          this.$emit('update', 'day', '*');
          break;
        case 2:
          this.$emit('update', 'day', '?');
          break;
        case 3:
          this.$emit('update', 'day', this.cycleTotal);
          break;
        case 4:
          this.$emit('update', 'day', this.averageTotal);
          break;
        case 5:
          this.$emit('update', 'day', this.workday + 'W');
          break;
        case 6:
          this.$emit('update', 'day', 'L');
          break;
        case 7:
          this.$emit('update', 'day', this.checkboxString);
          break;
      }
      ('day rachange end');
    },
    // 周期两个值变化时
    cycleChange() {
      if (this.radioValue == '3') {
        this.$emit('update', 'day', this.cycleTotal);
      }
    },
    // 平均两个值变化时
    averageChange() {
      if (this.radioValue == '4') {
        this.$emit('update', 'day', this.averageTotal);
      }
    },
    // 最近工作日值变化时
    workdayChange() {
      if (this.radioValue == '5') {
        this.$emit('update', 'day', this.workdayCheck + 'W');
      }
    },
    // checkbox值变化时
    checkboxChange() {
      if (this.radioValue == '7') {
        this.$emit('update', 'day', this.checkboxString);
      }
    }
  },
  watch: {
    'radioValue': 'radioChange',
    'cycleTotal': 'cycleChange',
    'averageTotal': 'averageChange',
    'workdayCheck': 'workdayChange',
    'checkboxString': 'checkboxChange',
  },
  computed: {
    // 计算两个周期值
    cycleTotal: function () {
      const cycle01 = this.checkNum(this.cycle01, 1, 30)
      const cycle02 = this.checkNum(this.cycle02, cycle01 ? cycle01 + 1 : 2, 31, 31)
      return cycle01 + '-' + cycle02;
    },
    // 计算平均用到的值
    averageTotal: function () {
      const average01 = this.checkNum(this.average01, 1, 30)
      const average02 = this.checkNum(this.average02, 1, 31 - average01 || 0)
      return average01 + '/' + average02;
    },
    // 计算工作日格式
    workdayCheck: function () {
      const workday = this.checkNum(this.workday, 1, 31)
      return workday;
    },
    // 计算勾选的checkbox值合集
    checkboxString: function () {
      let str = this.checkboxList.join();
      return str == '' ? '*' : str;
    }
  }
}
</script>